US 12,305,125 B2
Stabilized concentrated formaldehyde solutions and methods of use thereof
Gregory Kaplan, Minnetonka, MN (US)
Assigned to BL TECHNOLOGIES, INC., Minnetonka, MN (US)
Appl. No. 17/619,253
Filed by BL Technologies, Inc., Minnetonka, MN (US)
PCT Filed Jun. 2, 2020, PCT No. PCT/US2020/035657
§ 371(c)(1), (2) Date Dec. 15, 2021,
PCT Pub. No. WO2020/256920, PCT Pub. Date Dec. 24, 2020.
Claims priority of provisional application 62/863,497, filed on Jun. 19, 2019.
Prior Publication US 2022/0282166 A1, Sep. 8, 2022
Int. Cl. C10G 29/24 (2006.01); B01D 19/00 (2006.01); B01D 53/52 (2006.01); B01D 53/78 (2006.01); C02F 1/20 (2023.01); C02F 1/68 (2023.01); C02F 101/10 (2006.01); C02F 103/10 (2006.01)
CPC C10G 29/24 (2013.01) [B01D 19/0005 (2013.01); B01D 53/52 (2013.01); B01D 53/78 (2013.01); C02F 1/20 (2013.01); C02F 1/683 (2013.01); B01D 2251/21 (2013.01); C02F 2101/101 (2013.01); C02F 2101/40 (2013.01); C02F 2103/10 (2013.01); C10G 2300/1033 (2013.01); C10G 2300/1037 (2013.01); C10G 2300/207 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A stable concentrated formaldehyde blend, the blend comprising:
a formaldehyde solution; and
a glycerol compound,
wherein the glycerol compound is crude glycerol, and the crude glycerol comprises about 80-85% glycerol by weight.